Grand-piano case.



L. AVISUS.

GRAND PIANO CASE.

APPLICATION FILED NOV. 1, I912. RENEWED OCT. 6.1915

1,1 60,969. Patented Nov. 10, 1915 g B 1 -A UNITED STATES PATENT LEOPOLD AVISUS, OF NEW YORK, N. Y., ASSIGNOR T0 BRAMBAGE Pill-1N G CQMPAIG'Y, i NEW YORK, N. Y., A CORPORATION OF NEW YORK.

GRAND-PIANO CASE.

s p eci fication of Letters Patent.

Patented N (W. 21.6, 1915.

Application filed November 1, 1912, Serial No. 728,973. Renewed Gctober 6, 1915. Serial Ito. 54,433;

To all whom it may concern:

Beit known that I, LEOPOLD citizen of the United States, York, 1n the county of New York and State of New York, have invented a new and use ful Grand-Piano Case, of which the following is a specification. z

As heretofore constructed, so far as I am aware, grand piano cases have been provided with cheek pieces integral and continuous with the strip which extends around the rear of the side walls.

AVIS'US, a

Owing to the peculiar shape of this. piece and the-treatment which it has to surface of the piece A. It will he noticed receive in giving itthat shape, it has a tendunderstood, addsmaterially which relatively ency to warp ordinarily, and the effect of this warpin is, particularlynoticeableon the ends orchecks thereof, It is also necessary to uselong pieces of wood of the same thickness as the cheeks, and this, as is well to the expense, as pieces which have no imperfections throughout are more expensive than small pieces of thesame grade..

The principal objects of this invention are to eliminate thesedifiiculties, and to provide a constructionin which the Warping of the long strip will be less apparent in the check pieces, and in fact will have very little effect upon them; a construction in which the cheek pieces themselves tend ployed; also to. which a vertical line will appear at the rear of each cheek piece, thus, giving the casing the appearance of being made of thicker material and adding to the beauty" thereof.

Reference is to be had tothe accon1panying drawings, in Which.-, I

Figure 1 is side elevation of the front art of'a grand piano case with a preferred lhrm of this invention applied thereto; Fig. 2 is a similar view of the cheek and a part of thcback strip separated from each other; Fig. 3 is a sectional view on the-line 3-3 of Fig. 1 on enlarged scale; and Fig. t is a plan of the cheek and back strip on reduced scale. The invention is shown as applied to a grand piano casing of a well known type. In this case the baclc'strip A, which extends around the hack anr long the sides or ends for a distance. is;v 1de pneterably of a single residing at; New

case and forms the rear and v to strengthen and hold the ends of the back strip and prevent their displacement, and in sfnall pieces can be em provide a construction in piece of'wood and extends only to the edges which ordinarily constitute the cheeks there: of, that is, to a place at the side or" strument, not far from the front. t ass point this strip is provided vertical terminal tenons a. Fitting on the ends ofthis strip are a pair of cheek pieces. B, each having'a notch on the outer side and.

the notch 21 mortise into which the expense of course, but which hast-is act ditional advantage of permitting the handing and manipulation thereof reduced ex ease and also with more, accuracy.

j t will be seen-that by uniting the 1 arts as shown in Fig. 3, and gluing the abutting surfaces the back strip strengthened and supported all along front edge by the heavy cheek piece.

this a y the tendency to war is etiicctivcly resisted and the parts kept hrmly in, posi .tion.

Although I have illustrated and described only one-embodiment of the invention, 1 am aware ol'thc fact that many changes can he made therein by any person skilled in the *art without departing from the scope of the invention as expressed in the claims. Therefore, I do not wish to be limited to all the details of construction herein shown and dea scribed, but What I do claim is 1. As an article ofmanufa-ctnre, a grand piano case having a rear strip cxtnding around to the sides or ends of the instr M ment and terminating at a distance time the with a pair (ifis niaterialiy front thereof, and a cheek formed of mate rial substantially twice as thick as said rear part, mortised vertically to the end thereof at the outer side to support and. hold r of the rear strip in position and having a tongue extending rearwardly along the inner surface of the rear strip to strengthen the jolnt.

2. As an article of manufacture, a grand piano case having a rear part extending alOllld to the sides or ends near the front and provided with terminal vertical central tenons, and a pair of check pieces formed of material thicker than the rear piece and each having a vertical notch on the outer side thereof and a mortise at the end of said notch beyond the center of the cheek piece for receiving said tenon.

3. As an article of manufacture, a grand piano case having arear part extending around to the sides or ends near the front and provided with terminal vertical tenons, and a pair of check pieces formed of material thicker than the rear piece and each having a vertical notch on the outer side thereof terminating in a vertical outside corner and a mortise at the end of said notch. for receiving said tenon, the ends of the rear my hand, in the presence of tWo subscribing witnesses.

LEOPOLD AVISUS. lVitnesses:

MARK P. CAMPBELL, CnAs. F. MEABS'I'ATTEN. 

